Explanation Explanation for correct answers: Option ( a ) is given that the trochlear nerve plays a role in the vision. Trochlear nerve is the fourth nerve among the 12 cranial nerves. It is a motor nerve supplying only a single muscle, that is, the superior oblique muscle of the eye. Hence, option ( a ) is correct. Option ( c ) is given that the abducens nerve plays a role in the vision. The abducens nerve is the sixth cranial nerve among the 12 cranial nerves. It controls the sideways movement of the eye by controlling the lateral rectus muscle of the human eye. Hence, option ( c ) is correct. Explanation for incorrect answers: Option (b) is given that the trigeminal nerve plays a role in the vision...

18th Edition

ISBN: 9781323766903

Author: Marieb

Publisher: PEARSON C

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Question

Chapter 7, Problem 9MC

Summary Introduction

Introduction:

Nerves originating from the brain are the cranial nerves. The central nervous system (CNS) divides into a network of nerves supplying the body with the required stimulus. There are 12 pair of cranial nerves, which control primarily the head and neck.

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Chapter 7, Problem 8MC

Chapter 7, Problem 10MC

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Chapter 7 Solutions

ESSENTIALS OF HUMAN ANAT...>CUSTOM<

Ch. 7 - More than one choice may apply. 1. Which of the...Ch. 7 - Prob. 2MC Ch. 7 - The innermost delicate meningeal layer is the a....Ch. 7 - Prob. 4MC Ch. 7 - 5. The pineal gland is located in...Ch. 7 - Prob. 6MC Ch. 7 - 7. The spinal cord feature associated with the...Ch. 7 - Prob. 8MC Ch. 7 - Prob. 9MC Ch. 7 - Motor functions of the extensor muscles of the...

Ch. 7 - 11. Neuroglia present in large numbers in areas of...Ch. 7 - 12. Which of the following is true of the...Ch. 7 - 13. What are the two great controlling systems of...Ch. 7 - Prob. 14SAE Ch. 7 - Prob. 15SAE Ch. 7 - Two major cell groups make up the nervous...Ch. 7 - Briefly explain how nerve impulses are initiated...Ch. 7 - Prob. 18SAE Ch. 7 - Prob. 19SAE Ch. 7 - Prob. 20SAE Ch. 7 - Prob. 21SAE Ch. 7 - 22. What is the function of the thalamus? The...Ch. 7 - Describe how the brain is protected by bone,...Ch. 7 - Prob. 24SAE Ch. 7 - Prob. 25SAE Ch. 7 - Prob. 26SAE Ch. 7 - Prob. 27SAE Ch. 7 - Prob. 28SAE Ch. 7 - Prob. 29SAE Ch. 7 - Prob. 30SAE Ch. 7 - Prob. 31SAE Ch. 7 - Prob. 32SAE Ch. 7 - Prob. 33SAE Ch. 7 - 34. How does a Schwann cell help insulate a nerve...Ch. 7 - Prob. 35SAE Ch. 7 - Prob. 36SAE Ch. 7 - Prob. 37CT Ch. 7 - 38. Joseph, a man in his early 70s, was having...Ch. 7 - Prob. 39CT Ch. 7 - Prob. 40CT Ch. 7 - Prob. 41CT Ch. 7 - 42. Mrs. Chen, a new mother, brings her infant to...Ch. 7 - Three-year-old Brittany is sobbing that her right...Ch. 7 - 44. Mr. Harrison is an 82-year-old bedridden...Ch. 7 - Clarence, an elderly man with a history of TIAs,...Ch. 7 - Prob. 46CT Ch. 7 - Jason is the star of his hometown ice hockey team....Ch. 7 - Prob. 48CT Ch. 7 - Prob. 49CT Ch. 7 - As the aroma of freshly brewed coffee drifted by...

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Nerves originating from the brain are the cranial nerves. The central nervous system (CNS) divides into a network of nerves supplying the body with the required stimulus. There are 12 pair of cranial nerves, which control primarily the head and neck.

Solution Summary: The author explains that the abducen and the trochlear nerves play a role in the human vision.

Concept explainers

Introduction: Nerves originating from the brain are the cranial nerves. The central nervous system (CNS) divides into a network of nerves supplying the body with the required stimulus. There are 12 pair of cranial nerves, which control primarily the head and neck.

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Chapter 7 Solutions

Introduction:

Nerves originating from the brain are the cranial nerves. The central nervous system (CNS) divides into a network of nerves supplying the body with the required stimulus. There are 12 pair of cranial nerves, which control primarily the head and neck.